Chapter 35 - Chapter 35 Chordates I. Phylum Chordata A....

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 35 Chordates I. Phylum Chordata A. Characteristics – present at some point in lives 1. Dorsal hollow nerve cord 2. notochord 3. Pharyngeal slits (pouches) 4. post anal tail 5. more active life style 6. well developed sense organs 7. endoskeleton 8. segmented body 9. complete digestive system 10. deuterostomes
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
B. Subphylum Urochordata – Tunicates 1. characteristics a. adults sessile and have lost most chordate characters-filter feeders b. cellulose like covering (tunic) c. larva – free swimming 1. no mouth 2. chordate characteristics Tunicate larva Tunicate adult C. Subphylum Cephalochordata – lancelets
Background image of page 2
1. Characteristics a. pharyngeal gill basket b. atriopore c. oral tentacles d. possibly vertebrates closest ancestor lancelets D. Subphylum Vertebrata 1. Characteristics a. vertebral column – encloses nerve cord b. head – well differentiated and developed c. endoskeleton of cartilage or bone d. internal organs 1. kidney
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2. liver 3. endocrine glands e.
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 11

Chapter 35 - Chapter 35 Chordates I. Phylum Chordata A....

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online